作　　者： ; ; ;

机构地区： 华南农业大学理学院

出　　处： 《华南农业大学学报》 2003年第2期84-86,共3页

摘　　要： 采用高压汞灯作为光源,研究了在二氧化钛悬浮体系中甲胺磷光催化降解反应动力学.考察了甲胺磷起始浓度、溶液pH值及温度对甲胺磷光催化降解速率的影响,结果表明甲胺磷光催化降解符合表观零级动力学规律.由于速率常数k与甲胺磷起始浓度有关,表明甲胺磷光催化降解反应不是一个简单的零级反应. The photocatalytic kinetics of methamidophos in aqueous TiO2 dispersions under radiation with highpressure mercury lamp were investigated. It was shown that the kinetics for photocatalytic degradation of methamidophos followed zero order kinetic law, and the initial concentration of methamidophos, pH value and temperature affected the degradation rates. The photocatalytic degradation of methamidophos was not a simple zero order reaction, because the rate constants was related to the initial concentration of methamidophos.

关 键 词： 甲胺磷 有机磷农药废水 光催化降解 反应动力学

领　　域： [环境科学与工程]